#extrusive — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #extrusive, aggregated by home.social.
-
Twinned #feldspar crystals
In a paving stone in #Exeter, United Kingdom, pound coin for scale.
Must have cooled slowly, allowing large crystals to grow, so #intrusive, not #extrusive / #volcanic.
My #photo of an #igneous #mineral because I like #geology